Vestibule-diaphragm.



H. H. SOHROYER.

VESTIBULE DIAPHRAGM.

APPLICATION FILED SEPT. 1, 19114 Patented Mar. 18, 1913.

HARRY H. SCHROYER, F CHICAGO, ILLINOIS, ASSIGNOR TO THE ACME *C GMPANY, A CORPORATEON OF ILLINOIS.

VESTIBULE-DIAPHRAGM.

Application filed September 1, 1811.

' the following is a full, clear,'and exact descript-ion of the same, reference being had to the accompanying drawings, and to .the numbers of reference marked thereon,-

which form a part of this specification.

This invention relates to improvements in vestibule diaphragms of that class hereto tore constructed of strips of fabric united together to afford curtain folds. As such diaphragms have been constructed heretofore, it frequently occured that the top at the diaphragm sags at the middle, due to the Weight of the structure and the constant Vibration to which the motion of the car subjects the same, so that after a period or" use, Water, cinders and dirt may accumulate to some extent on the top of the diaphragm, gradually seeping therethrough and in any event, rotting out the diaphragm.

The object 01": this invention is to afiord a self-contained and braced construction, in which the top of the diaphragm is so constructed as to insure that any Water, cinders or dirt falling on the diaphragm, will be shed therefrom at the sides, thereby keeping the top of the diaphragm at all times clean and preventing the rotting thereof.

It is also an object of the invention to atl'ord an exceedingly strong construction by bracing the diaphragm at the corners or bends by the insertion of reinforcing, Wedge shaped or key-stone shaped sections, arranged in overlapping relation to facilitate the shedding of Water and refuse from the dia hragni, and also serving to greatly sti en the connection betvcen the leg and top of the diaphragm.

A preferred form of the invention is hereinafter more fully described.

In the drawings: Figure 1 is a fragmentary, central, transverse section taken through a diaphragm embodying my invention. Fig. 2 is a fragmentary section taken on line 2-2 or" Fig. 1. Fig. 3 is an enlarged fragmentary transverse section taken at the junctureof the top and Lg of the diaphragm.

As shown in thedra stings: 1, indicates th Specification of Letters Patent.

Serial No. 847,206.

diaphragm face plate, in which the outer edge of told 2, ol' the diaphragm is secured, either by means of bolts or by any suitable fastening means. Said diaphragm con1- prises an accordion folded structure, constructed of a plurality of strips of suitable fabric such as three ply cotton belting, (either coated with rubber or not, as preferred) and which are sewed, stitched, stapled, riveted, or in any suitable manner attached edge to edge, as shown in'FigoZ, to ati'ord the folded structure.

As shown, each of the legs 3, of the diaphragm, is of a length to extend from the platform to the upper or first bend in the diaphragm face plate. Rigidly secured to the upper end or said diaphragm leg section, and overlapping the same, is a wedge shaped key or shoulder piece l. The top sections 5, of the diaphragm are secured to and overlap the upper edge of the shoulder piece 4, the inner or upper edges of said top sections incline upwardly to near the mid dleof the diaphragm, and there are rigidly united together by means or a key-stone shaped or wedge shaped piece of fabric 6, which overlaps the same, as shown in Fig. 1, and is permanently attached thereto.

Extending around each outwardly di rected fold or bend of the diaphragm, and rigidly secured thereto by riveting, stitching or otherwise to cover the raw edges or" the fabric, is a reinforcing brace strip 7 (preferably metallic), and bent or rolled to afford a channel to receive said outwardly directed fold of the diaphragm therein at its edge. and extending over the top and down on each leg, and, if preferred, to or near the platform. As shown, the top of the diaphragm inclines from each shoulder upwardly to its middle, affording a more or less pronounced pitch on each side thereof to shed the water, dust or dirt falling thereon, and the overlapped relation of the shoulder pieces l, top sections 5, and hey seclion (i. in the top of the diaphragm, permitno lodgment or. any material in the inner folds or bends of the diaphragm, and renders the top of the diaphragm self-clearing at all times.

Owing to the braced construction ail: 1):, the key and We e pieces, and by the A u'ardiy inclined top or the channel member 7, sagging never occurs, for the t o strr ture is rendered suiiicientlj? of Sl'IJ'C- Ling no we Q am one details of the i be varied out have illuslied and clesii'rilied oi'ily one (and diet. a ci'msliucliou embodying the ii1- llici'cfoi'e do not purpose patent to be ramed on lTlTlS lllfiil o iii :iccor I sections, 4 H N V .351 rll lll. )lL'Cll on 11o class (lesciibed ioios upwardly lllp sections, c see top sections at the id overleppiu and key-shaped pieces uniting (the bottom of each lop seceic the bottom of each le sec- 25 1 mid spping one and overlapping f lo SFOlCl, free drainage from the u'ugm.

:l, liaig" oi. the class described racing c -lODQ and top sections imiicd, llici'cwi inclining 111 weirdly to :1. comi'uon cooler, and o k' section overlapping llie zicljnceiil ends of the top section secured ilici'clo:

iliulc diaphragm, accordicm 3.; ":ns i-x'wmling to the inner di: plir: 91m upwardly iii- 1 m-coi'diou iluil'ed top sections e2;

shove the slicmldei's to near .(liaplii'agm "lop and M a ll pi l-h on eucli side the sc-i'imi rigidly :3G(3l"-"i)(l to oi" the top sec'tio' and smug 'lei' lacy section looser of the lop the upper end o'l'f (lie ul-ilei' nil secliou underlepping' the lop secoerlopping 'lllQ leg section and aimed thereto, and a reinforcing c channel g dly secured to each out- .uid bond 01 the diziolimgm 6G 1 A n QXlQKKllH" l'Oll" is snoulclei's and low oi llie die 2 gm.

6. lo a diziphegm oil ilie class escribed a laterally pitched an d slieddii l o oo U011 embracing now-m.

fly and i cliiied accordion pleited cop secl'i i ely connecting the seine W1 sec rleo lllQ seine so and overlapping each, and a with and acting to supio ii-c tie lop tlieireo a.

dis iliregm of the tlGSCT sections and lop sec united llieveivil'li one of the ls'l lei. l

slmiglil e c 'es and inclined upwzufoly t, on apex. "l

b. vestibule diaphragm of the class scribed embracing leg sections, pluralof top sect-ions unilecl 'lieiewilile one letter having straight edges extending obliquely upwardly therefrom to oi Xl motel the middle of tie diaphragm too mild afioirding an outward pitch on each side oi? es the diaphragm.

lo a vestibule diaphragm l-llG combiner tion with the accordion plei'teil leg section end the accordion pleited upwardly inclintop section,. of a, wedge 01' licey shaped on shoulder section uiiderleppiog the l p seclion and ovei'loppin 'Ilie leg section and rigidly secured l-liciie to.

10. lo a diaphragm of llie class described a laterally piiclied and shed top lion euiln'aciegupwardly we in orally cli'ocd accordion pleited top sections. moons rigidly connecting the so lili toe leg secliuos and a section on adjacent ends oi? lie top sections to 01rd. 10G

11 ln s vehliicule diaphragm oi; e 1 described, upright leg se lions cop lions silaclieo iliei'cio and conver ing upwardly iii'om eecli oi seid sections to :1

rounded apex. I. c 5

i vestibule diaphragm of he class Motions and s top section sedesciibe l leg s cured thereto sloping); upwardly to on 13, in a. vestibule diaphragm up legs and an upwardly converging; cop join- 11o log the some.

l testimony whereof i have hereunto losci'ibed my name in the presence of two subscribing Witnesse,

HARRY 'Vitiiesses CHARLE W. HILL-e, J12,

ll. Moose. 

